Validate email syntax, detect disposable/temporary domains, and inspect known MX records for common providers. Pure client-side — no DNS lookups, no network calls.
We never send anything to this address
Looks good
The address is syntactically valid and not on our disposable list. Note: actual deliverability requires a DNS MX lookup, which the browser cannot do directly.
About MX records
MX (Mail Exchange) records tell senders which server accepts mail for a domain. Browsers cannot perform DNS lookups directly, so this tool uses a static table for the most common providers. For full MX verification, run dig MX example.com in a terminal.